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US1855867A
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Assignee: Sperry Gyroscope Co Inc
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Filing: 1930-10-06
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Granted: 1932-04-26
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Expires: 1950-10-06
Abstract
No abstract record available.
Inventors
- 👤 Pearse Edmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:10
CPC Classifications
B; B63; B63B; B63B45/00; B63B45/02; F; F21; F21V; F21V17/00; F21V17/02; B63B2201/00; B63B2201/04; B63B2201/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-04-26 | 1935-10-26 | 1936-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-04-26 | 1939-10-26 | 1940-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-04-26 | 1943-10-26 | 1944-04-26 | $7700.00 | Window Closed / Lapsed |